The authentication glue you need
Authentication for the Web
MaxKey SSO ,Leading-Edge IAM-IDaas(Identity and Access Management)
The Single Sign-On Multi-Factor portal for web apps
Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
Web-based LDAP address book browser/editor
Zentyal is a Linux Small Business Server
Tomcat SPNEGO/Kerberos Authenticator and Active Directory Realm
The Identity Manager provides a solution to manage the user life cycle
A class for PHP to talk to Active Directory through LDAP.
phpbb Multiple domain Single Sign on with wordpress plugin
A secure, scalable, developer-friendly, and free OIDC Authentication G